# dup vs dur

> English confusable word pair

## The two words

### dup
*verb · IPA /dʌp/ · frequency rank #28,177*
to open (a door, gate etc.)

### dur
*adjective · IPA /duːɹ/ · frequency rank #39,793*
Major; in the major mode.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/vs/dup-vs-dur